Shore adapter



May 2, 1967 w; D. WILLIAMS SHORE ADAPTER Filed May 25, 1965 /NVEN7'ORWALTER D. W/LLl/M/S ,4 7- TORNEY sill.

United States Patent D 1 re 6 Filed May 25, 1965, Ser. No. 458,571

2 Claims. (Cl. 248-351) The present invention relates generally tobuilders hardware and has particular reference to a novel adapter bymeans of which a tubular steel shore section of relatively short lengthmay be attached to the upper end of a wooden base section ofappreciablelength, thus reducing the amount of steel that is requ1red toproduce an over-all shore for supporting a concrete floor slab form orother unit. The shore adapter of the present inventlon is also capableof use by itself as a substantially complete shore support in aninstallation Where a relatively short shore would otherwise be required.

The shore adapter of the present inventlon will be found particularlyuseful in Canada and certa n sections of the United States of Americawhere lurnber 1S plentiful and cheap. Where a particular buildinginstallation calls for a concrete floor slab form to be spaced upwardlyfrom the base sill a distance of ten feet, for example, a tubular steelshore, regardless of whether it is of one- -piece construction, would berelatively costly, to say nothing of the labor that is involved intransporting the shore to the scene of installation and there erecting1t.

The present invention makes possible the use of a shore assembly inwhich the lowermost or base section is comprised of an ordinary 4" x 4"wooden post and comprises the major portion of the height of the shoreassembly,

the remainder of the shore assembly being comprised of the presentadapter and an extremely short steel top shore section having facilitiesfor connecting it to the overhead form beam to be supported. The adapterfacilitates quick and easy connection of the upper end of the woodenpost to the lower end of the short steel top shore section.

In the erection of a concrete structure such as a quonset hut, atemporary dormitory or other building which has no basement, the floorslab for such building 1S usually maintained elevated from the ground ashort distance, for example, two or three feet. In the erection of theconcrete floor slab form for such a structure, the present adapter willfind use in combination with a short steel shore section as a completeshore for supporting the necessary concrete floor slab form directlyfrom a ground The provision of a shore adapter which will accommodateboth of the above-described types of installations and in either eventserves as a constituent part of a shore, constitutes the principalobject of the present invention.

A further object of the invention is to provide a shore adapter whichembodies a novel arrangement of parts, effectivelyand efficientlyfulfills its intended purpose, occupies but a small amount of space, andmay be produced at a reasonable cost.

Other objects and the various advantages and characteristics of theinvention will become readily apparent as the nature of the invention isbetter understood.

In the accompanying single sheet of drawings forming a part of thisspecification, one illustrative form of shore adapter embodying theinvention is shown and incorporated in two exemplary environments.

In these drawings:

FIG. 1 is a perspective view of a shore adapter constructed according tothe principles of the present invention, the adapter being shownoperatively installed in a ihore assembly for supporting a high concretefloor slab orm;

FIG. 2 is a sectional view taken substantially along the vertical planeindicated by the line 2-2 of FIG. 1 and in the direction of the arrows;and

FIG. 3 is a perspective view of the shore adapter showing the sameoperatively applied to a ground sill in connection with the supportingof a low concrete floor slab form.

Referring now to the drawings in detail and in particular to FIGS. 1 and2, a shore adapter constructed according to the present invention isdesignated in its entirety by the reference numeral 10 and is shown orillustrated as constituting a constituent part of a complete shoreassembly 12 for supporting a horizontal beam or stringer 14 forming apart of a high concrete floor slab form (not shown). It will beunderstood that the beam 14 serves, in combination with other beams, tosupport thereon a series of horizontally disposed form panels (also notshown) having coplanar panel facings upon which wet concrete is adaptedto be poured to provide a floor slab upon setting of the concrete. Theshore assembly 12 is supported upon the usual ground-supported orfloor-supported sill 16.

Ordinarily, in the erection of a high concrete floor slab form such asthe form of which the horizontal beam 14 constitutes a part, anall-steel shore, adjustable or otherwise, extends between the sill 16and the beam 14, appropriate hardware being employed for attachment ofthe shore to the beam. The shore adapter 10 of the present invention hasbeen designed in the interests of economy for the purpose of enabling amajor portion of the shore assembly 12 to be comprised of wood, thewooden portion being in the form of a vertically elongated post of theordinary 4" x 4" variety, such a post being designated by the referencenumeral 20.

Still referring to FIGS. 1 and 2, the shore adapter 10 is in the form ofa composite steel unit including a tubular body section 22 which is ofsquare horizontal cross sec tion and has paired opposed side walls 24and 26. A flat square cap section 28 closes the upper end of the bodysection and has downturned marginal flanges 30 which are welded as at 32to the upper marginal portions of the various side walls of the bodysection. The lower end of the body section 22 is open. The internaltransverse dimension of the tubular body section 22 in either directionis slightly in excess of four inches to permit the body section to betelescopically received over the upper end of the post 20 to such extentthat the upper end surface of the post abuts against the underneath orbottom face of the cap section 28. Nail holes 34- are formed in theopposed side walls 26 for reception therethrough of the shank portionsof double-headed nails 36, the nails being driven into the post 20 inorder fixedly to secure the adapter 10' and its post 20 together.L-shaped attachment feet 40 have their vertical flanges 42 welded as at44 to the opposed side walls 24 of the tubular body section 22 and havetheir horizontal flanges 48 projecting laterally from the lower regionof the tubular body section 22 in substantially coplanar relationshipwith the lower open rim thereof. Nail holes 50 are formed in the lateralor horizontal flanges 48 and are designed for reception therethrough ofdouble-headed nails 52 as shown in FIG. 3 in order that the adapter maybe fixedly secured to a sill when the adapter 10 is employed as a basesupport, all in a manner that will be described subsequently.

The upper face of the cap section 28 has welded thereto as at 54 thelower rim of an upstanding tubular cylindrical retaining sleeve 56. Oneside of the sleeve is formed with a pin-receiving hole 58 and the otherside is formed with a bolt-receiving hole 6t which is diametricalyaligned with the hole 58. A nut 62 is welded as at 64 to said other sideof the sleeve 56 in alignment or register with the hole 60. A lockingbolt 65 is adapted to be threadedly received through the nut 62 and toenter the hole 60 for clamping purposes, as will be described presently.A conventional fast pin 70 is adapted to be projected through the hole58 and serves a function that likewise will be described subsequently.The fast pin '70 is connected by a chain 72 to the shore adapter so thatit is not likely to become misplaced. Accordingly, a T-bar '74 issecured to the end of the chain that is remote from the pin, and isadapted to be passed inwardly of the sleeve 56 through a hole 76 in thesleeve. Once inserted into the sleeve, the T-bar can be removed onlyendwise through the hole 76.

The sleeve 56 of the shore adapter 19 is adapted to support a verticallyextending, relatively short tubular steel shore section 80 in centeredrelationship. The shore section 80 is provided with a reduced pilotportion 82 at its lower end, this pilot portion fitting snugly withinthe sleeve 56 in telescopic relationship and with the upper rim of thesleeve 56 bearing upwardly against the downwardly facing annularshoulder 84 which exists by reason of the reduced pilot portion. Theupper end of the tubular shore section has welded thereto as at 85 atray-like support 88 having upturned side flanges 90. The latter areprovided with nail holes 92 for reception therethrough of double-headednails 94 by means of which the tray may be secured to the beam 14 insupporting relationship. Y

The lower region of the pilot portion 82 of the tubular steel shoresection Si) is formed with a hole 96 which is designed for registry withthe hole 58 when the shoulder 84 is seated on the upper rim of theretaining sleeve 56 to the end that the fast pin '70 may be projectedthrough both holes, thus securing the shore section 80 to the shoreadapter 10. Where the connection between the shore section 80 andadapter 10 does not necessarily have to be a tight one, the bolt 66 maybe omitted. However, where a tight connection is desired, the bolt 66may be threaded through the nut 62 and its inner end caused to engagethe adjacent side of the reduced pilot portion 82, thus securelyclamping the shore section in position on the adapter 10.

Where a low concrete slab form is concerned, the shore adapter 1% of thepresent invention is useable as a base support for one of the shorttubular steel shore sections 8%, the adapter and the shore sectionconstituting an entire shore assembly and the use of a wooden postsection being dispensed with. In FIG. 3, the adapter 10 is shown asbeing operatively installed directly upon a ground si-ll 100 by means ofthe nails 52 which are driven downwardly into the sill through the holes50 in the horizontal flanges 48 of the attachment feet 40. The adapteris shown in a position wherein it is ready to receive thereon shoresection like the shore section 80. When the aforementioned shore sectionis in place, the tray-like support at the upper end of the shore sectionwill then assume the desired elevation to support one of the beams 14 ofthe associated concrete slab form.

It will be understood that in connection with either the installation ofFIG. 1 or the installation of FIG. 3, the desired concrete floor slabform elevation may be attained b-y the use of adjustable tubular steelshore sections 8% or tubular steel shore sections of varying length. Inthe case of the installation of FIG. 1, an additional factor which maybe employed to vary the over-all height of the shore assembly is thelength of the wooden post 20.

The invention is not to be limited to the exact arrangement of partsshown in the accompanying drawings or described in this specification asvarious changes in the details of construction may be resorted towithout departing from the spirit or scope of the invention. Therefore,only insofar as the invention has particularly been pointed out in theaccompanying claims is the same to be limited.

Having thus described the invention what I claim as new and desire tosecure by Letters Patent is:

1. A steel shore adapter capable of alternatively establishing asupporting thrust connection between either the upper end of a verticalwooden shore post having a square cross section or a horizontalfoundation sill and the lower end of a tubular cylindrical steel shoresection, the lower region of said shore section being formed with areduced pilot section establishing a downwardly facing shoulder, saidadapter comprising an inverted cup-shaped body including a square topwall and four depending side walls, said body being adapted fortelescopic reception over said upper end of the post, certain of saidside walls being formed with nail holes therein for receptiontherethrough of nails by means of which the body may be nailed inposition on the post, and a cylindrical tubular retaining sleeve havingits lower rim welded in centered relationship to said top wall,projecting vertically upwardly therefrom, and designed for telescopicreception therein of said reduced pilot section of the steel shoresection so that said shoulder seats upon the upper rim of the sleeve,said retaining sleeve being formed with a bolt-receiving hole therein, anut welded to said retaining sleeve exteriorly thereof and in registerwith said boltreceiving hole, a bolt threaded ly received by said nutand adapted upon turning thereof ina tightening direction to beprojected through said bolt-receiving hole and into clamping engagementwith said pilot section when the latter is received within the retainingsleeve, and a pair of attachment feet in the form of anglepieces weldedto two of the opposed side walls of said body and presenting horizontalnailing flanges which project outwardly laterally from said body and liein the horizontal plane of the lower rim of the body, said nailingflanges each being provided with nail holes therein by means of whichthe body may be secured to said horizontal foundation sill.

2. A steel shore adapter as set forth in claim 1, wherein said retainingsleeve is provided with a pair of holes therein, the adapter furtherincluding a separate chain and fast pin assembly, said assemblyincluding a fast pin and a chain having one end attached to the fastpin, and a T-bar attached to the other end of the chain, one of saidholes in the retaining sleeve being designed for passage of the fast pinthereinto in locking relationship with respect to the shore section, andthe other hole being adapted for reception of the T-bar therethrough tocapture the chain and fast pin assembly with respect to the r shoreadapter.

References Cited by the Examiner UNITED STATES PATENTS 147,373 1/1904Germany.

CI-IANCELLOR E. HARRIS, Primary Examiner. CLAUDE A. LE ROY, Examiner. I.F. FOSS, Assistant Examiner.

1. A STEEL SHORE ADAPTER CAPABLE OF ALTERNATIVELY ESTABLISHING ASUPPORTING THRUST CONNECTION BETWEEN EITHER THE UPPER END OF A VERTICALWOODEN SHORE POST HAVING A SQUARE CROSS SECTION OR A HORIZONTALFOUNDATION SILL AND THE LOWER END OF A TUBULAR CYLINDRICAL STEEL SHORESECTION, THE LOWER REGION OF SAID SHORE SECTION BEING FORMED WITH AREDUCED PILOT SECTION ESTABLISHING A DOWNWARDLY FACING SHOULDER, SAIDADAPTER COMPRISING AN INVERTED CUP-SHAPED BODY INCLUDING A SQUARE TOPWALL AND FOUR DEPENDING SIDE WALLS, SAID BODY BEING ADAPTED FORTELESCOPIC RECEPTION OVER SAID UPPER END OF THE POST, CERTAIN OF SAIDSIDE WALLS BEING FORMED WITH NAIL HOLES THEREIN FOR RECEPTIONTHERETHROUGH OF NAILS BY MEANS OF WHICH THE BODY MAY BE NAILED INPOSITION ON THE POST, AND A CYLINDRICAL TUBULAR RETAINING SLEEVE HAVINGITS LOWER RIM WELDED IN CENTERED RELATIONSHIP TO SAID TOP WALL,PROJECTING VERTICALLY UPWARDLY THEREFROM, AND DESIGNED FOR TELESCOPICRECEPTION THEREIN OF SAID REDUCED PILOT SECTION OF THE STEEL SHORESECTION SO THAT SAID SHOULDER SEATS UPON THE UPPER RIM OF THE SLEEVE,SAID RETAINING SLEEVE BEING FORMED WITH A BOLT-RECEIVING HOLE THEREIN, ANUT WELDED TO SAID RETAINING SLEEVE EXTERIORLY THEREOF AND IN REGISTERWITH SAID BOLTRECEIVING HOLE, A BOLT THREADEDLY RECEIVED BY SAID NUT ANDADAPTED UPON TURNING THEREOF IN A TIGHTENING DIRECTION TO BE PROJECTEDTHROUGH SAID BOLT-RECEIVING HOLE AND INTO CLAMPING ENGAGEMENT WITH SAIDPILOT SECTION WHEN THE LATTER IS RECEIVED WITHIN THE RETAINING SLEEVE,AND A PAIR OF ATTACHMENT FEET IN THE FORM OF ANGLEPIECES WELDED TO TWOOF THE OPPOSED SIDE WALLS OF SAID BODY AND PRESENTING HORIZONTAL NAILINGFLANGES WHICH PROJECT OUTWARDLY LATERALLY FROM SAID BODY AND LIE IN THEHORIZONTAL PLANE OF THE LOWER RIM OF THE BODY, SAID NAILING FLANGES EACHBEING PROVIDED WITH NAIL HOLES THEREIN BY MEANS OF WHICH THE BODY MAY BESECURED TO SAID HORIZONTAL FOUNDATION SILL.